Question

Factorize d² +13d + 22​

Answer 1

(d+9/2)(d-9/2)

Explanation:

Use the formula. x=

`+ \sqrt({b { }^(2) } - 4ac) / (2a) \ \\ - \sqrt({b { }^(2) } - 4ac) / (2a)`

where x=d, a =1 , b=13 , c=22.

since,

`ax {}^(2) + bx + c = 0`

Answer 2

Answer: (d + 2)(d + 11) = d^2 + 13d + 22